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Old 2018-01-03, 07:13   #287
LaurV
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Quote:
Originally Posted by airsquirrels View Post
Worth mentioning, the gpuOwl verification did complete successfully in record time! (Thanks Preda!)

Max ROE was 0.38.
Kind of giving away the range (at least, the limit) isn't it?
(sorry, I am far behind with the reading and news due to the winter holidays..., but I am catching up)
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Old 2018-01-03, 07:18   #288
LaurV
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Quote:
Originally Posted by Mark Rose View Post
So if you wanted to print the full decimal expansion on US letter sheets at 6 point size with ½" margins, it would take approximately 2500 pages.
Quote:
Originally Posted by Mark Rose View Post
I guess if I double-sided it, it would take only 1250 pages. I forgot you could do that with paper haha
Wrong, it will still take 2500 pages, but only 1250 sheets of paper...
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Old 2018-01-03, 07:39   #289
LaurV
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Quote:
Originally Posted by rudy235 View Post
M3 -3 however ends in 9
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Old 2018-01-03, 08:15   #290
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Quote:
Originally Posted by LaurV View Post
Oops! I meant -2
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Old 2018-01-03, 08:57   #291
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Quote:
Originally Posted by rudy235 View Post
Oops! I meant -2
Another thing that can be a bit confusing, is that sometimes \(M_n\) is used to mean \(2^n - 1\), while at other times it is used to mean the \(n\)th entry in the sorted vector \((2^2-1,2^3-1,2^5-1,2^7-1,2^{13}-1,\ldots )\) of all existing Mersenne primes, and sometimes it is meant to mean the \(n\)th entry in the list of currently known primes, sorted by either size or discovery date.

When I saw \(M_3\), I thought of \(7\), not \(31\).

/JeppeSN

Last fiddled with by JeppeSN on 2018-01-03 at 08:59
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Old 2018-01-03, 09:36   #292
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Quote:
Originally Posted by JeppeSN View Post
Another thing that can be a bit confusing, is that sometimes \(M_n\) is used to mean \(2^n - 1\), while at other times it is used to mean the \(n\)th entry in the sorted vector \((2^2-1,2^3-1,2^5-1,2^7-1,2^{13}-1,\ldots )\) of all existing Mersenne primes, and sometimes it is meant to mean the \(n\)th entry in the list of currently known primes, sorted by either size or discovery date.

When I saw \(M_3\), I thought of \(7\), not \(31\).

/JeppeSN
You are right. Although I believe the expression M(3)=7
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Old 2018-01-03, 09:51   #293
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Following this while on lazy holiday was quite exciting.

But did I miss something? M51 also discovered?
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Old 2018-01-03, 11:04   #294
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Quote:
Originally Posted by houding View Post
Following this while on lazy holiday was quite exciting.

But did I miss something? M51 also discovered?
No way
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Old 2018-01-03, 13:23   #295
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Quote:
Originally Posted by MacPrime View Post
M51 is already discovered and I will announce M50 and M51 together tomorrow GMT 08:00, Jan 04.
11 posts in this forum... Right. Who has done what to you, that you make such a posting?
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Old 2018-01-03, 14:01   #296
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Quote:
Originally Posted by tha View Post
11 posts in this forum... Right. Who has done what to you, that you make such a posting?
Yes, a strange post. But that user's first post was actually pretty valuable, alerting us to previously unknown factors in FactorDB. So... who knows what prompted this.
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Old 2018-01-03, 14:17   #297
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Quote:
Originally Posted by GP2 View Post
Yes, a strange post. But that user's first post was actually pretty valuable, alerting us to previously unknown factors in FactorDB. So... who knows what prompted this.
I dont think that he had an other Mersenne prime, maybe just a false positive.
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